Xidea Airport is a small general aviation airstrip located near Alto Alegre, a municipality in the state of Roraima, northern Brazil. It serves the local community and provides basic air access to a region characterized by limited road infrastructure and proximity to indigenous territories. The airport operates under the ICAO code SJNG and has no assigned IATA code, reflecting its status as a minor, non-commercial facility. It primarily supports light aircraft, missionary flights, and government or humanitarian operations in this remote Amazonian region.